<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<select id="model.appversionid" name="model.appversionid" onchange="changeappversion()">
   <option value="-1">--请选择--</option>
   <s:iterator value="appversionlist" status="stat">
   <option value="<s:property value="id" />" <s:if test="id.equals(model.appversionid)">selected</s:if>><s:property value="appname" /></option>
   </s:iterator>
 </select>
           <span class="require-field">*</span><span id="CompareValidator2" style="color:Red;visibility:hidden;">不能为空</span>